package com.doumee.lib_coremodel.util.luban;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* Automatically close the previous InputStream when opening a new InputStream,
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* and finally need to manually call {@link #close()} to release the resource.
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*/
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public abstract class InputStreamAdapter implements InputStreamProvider {
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private InputStream inputStream;
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@Override
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public InputStream open() throws IOException {
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close();
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inputStream = openInternal();
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return inputStream;
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}
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public abstract InputStream openInternal() throws IOException;
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@Override
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public void close() {
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if (inputStream != null) {
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try {
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inputStream.close();
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} catch (IOException ignore) {
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}finally {
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inputStream = null;
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}
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}
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}
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}
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